Author: James T. Walker
Date: 07:26:44 12/01/00
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On December 01, 2000 at 09:45:17, Uri Blass wrote: >On December 01, 2000 at 09:16:12, martin fierz wrote: > >>i was wondering about some evaluations which fritz 5.00 gives me for the >>following position: >> >>[D]1k1r3r/p1p1n3/1pq1p2p/P3Ppp1/2QP4/8/2P1NPPP/RR4K1 w - - 0 0 >> >>the black king is under attack, but fritz gives about +1.5 on depth 11 >>for qxc6 (to be fair, this is only the second-best move according to fritz). >>after you play out the moves qxc6 nxc6 the evaluation drops immediately to 0, >>which is obviously a better evaluation for the position after the queen >>exchange. >>is this an example for preprocessing in action - bad black king AND queens on >>the board? > >Yes > ><snipped> >> and if yes: which programs do NOT make this type of mistake? > >Gandalf does not do preprocessing and I believe that there are a lot of programs >that do not do this kind of mistake. > >My experience with chessmaster6000,hiarcs7.32 and Junior also suggest that they >are better than Fritz5 in avoiding preproccesing. > >I believe that Fritz5 does more preprocessing than most programs. > >I have not Fritz6a but I read that Fritz6 is clearly better in avoiding >preprocessing and this is one of the reasons thast fritz6a is better. > >Uri I gave this to Fritz 6 and it has +1.34 with Qa6. I think the evaluation is OK but exchanging Queens kills the attack. Fritz 6 seems to try to avoid this exchange. Jim
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